Clutch assembly for ferruling machines



Jne 1'3, 1944.

M. O. SEARLE CLUTCH ASSEMBLY Fon FERRULING MACHINES Filed May 2. 1942 2 Sheets-Sheet 1 luver'ztor June 13, 1944. M. O. SEARL 2,351,155

CLUTCH ASSEMBLY FCR FERRULINC MACHINES Filed May` 2, 1942 2 SheetS-Sheet 2 Ma/rs/a/ZZ Searle Patented June 13, 1944 `uul'rlzp STAT-Esy PATENT OFFICE CLUTCH ASSEMBLY FOR FERRULING MACHINES Marshall `0. Searle, BeverlyHillsyCalii-v Application May 2, 1942, Serial No. 441,491 3 Claims. (Cl. 192;,99)

The present invention relates to `ne'vvand us'ej ful improvements iny a clutch assembly for transmitting power from anl electric motor, or other source of power, to a ferrule beading machine.

One of the objects of the present invention is to provide a more uniform bead on the ferrule as it is crimped onto a conduit, such as a flexible conduit found in electrical systems, particularly aircraft electrical wiring systems.

Another object is to provide means for reducing the revolving speed of the beading dies of the ferruling machine, as related to the source of power, so that the ferruling operation may be more practicably controlled.

A further object is to provide a device of this character of simple and practical construction which. is eicient and reliable in performance, relatively inexpensive to manufacture and install in operative position and otherwise well adapted for the purposes for which the same is intended.

Other objects and advantages reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming part hereof, wherein like numerals refer to like parts throughout, and in Which- Figure 1 is a front elevational view of the table on which the ferruling machine and clutch assembly is mounted.

Figure 2 is a fragmentary side elevational view with parts shown in section.

Figure 3 is a longitudinal sectional view through the clutch assembly.

Figure 4 is an end elevational View thereof, and

Figure 5 is a perspective view of the actuating lever for the clutch.

Referring now to the drawings in detail, where- .in for the purpose of illustration I have disclosed c. preferred embodiment of the invention, the numeral 4 designates a motor which is fixed to the underside of a suitable table or bench top 5 and is in ade to revolve a large pulley from a small motor pulley 'I through a belt 8. The pulley 6 is `keyed to a sleeve 9 adapted to freely rotate and siide on a shaft l journaled in brackets I I and I2 secured to the underside of the table.

A clutch disk I3 is keyed to the sleeve 9 allowing sufficient clearance between said disk and the pulley 6 to accommodate a lever I4 therebetween,

the lever being pivoted on a bracket I also secured to the underside of the table for the purpose of moving the sleeve 9 over the shaft I0. The lever I4 is provided with an opening I4' freely receiving the sleeve 9 and is positioned between the hub portions E and I3 on the pulley 6 and disk' I3, respectively, for engaging said hubs Vupon opposite movement ofthe lever.v In operating relation to the disk I3 is placed a similar disk I6 keyed to the shaft I0 and engagement of the disk I3 with the disk I6, it is seen, will cause the disk I6 and shaft I0 to rotate.

A pulley II is secured to an end of the shaft l5 and is caused to revolve with the shaft and in this maner transmits power to a pulley I8 on the ferruling machine I9 through the belt 20, said pulley I8 being fixed to the rotatable portion of the ferruling machine.

It is seen that when proper consideration has been given to the pulley sizes, in operating relation to each other, any predetermined number of revolutions per minute can be delivered to the ferruling machine from the source of power.

Engagement of the revolving disk I3 to the disk IS on the shaft I9 is controlled by the action of a crank-like portion 2I of a treadle shaft 22 ,pivoted near the floor at 23 and 24. A spring 25 is connected to a pin 25 projecting laterally from the, shaft 22 to return the shaft 22 and treadle 22 to its normal position to permit disengagement of the clutch disks as shown in Figure l. A stop pin 2l is engaged by the pin 2f: to limit action of the spring 25.

The disk I3 is moved out of engagement with the disk I6 by the action of the pulley 6 which shifts with the disk I3 on the shaft III into a position offset from the drive pulley 'I resulting in a distortion of the belt 8 and accordingly when pressure on the lever I4 is released to permit the latter to gravitate into its normal position, the belt 8 will straighten itself to move the pulleys into an alined position. The gravitating action cf the lever I4 engaging the hub 6 of the pulley 5 also assists this action. In this manner it is possible to operate the ferruling machine while both hands of the workman remain free.

While it is to be noted that any number of transmission devices may be used to deliver and control power to the ferruling machine, the combination of pulleys and clutch, as shown in the drawings, provides adequate means for properly powering and controlling the ferruling machine.

It is believed the details of construction and manner of use of the device will be readily understood from the foregoing without further detailed explanation.

Having thus described the invention what I claim is:

l. A clutch device of the class described comprising a driven shaft having a pulley secured thereto, a drive shaft sleeved on the driven shaft and also having a pulley secured thereto, a clutch element secured to the drive shaft, a clutch element secured to the driven shaft, a lever disposed transversely behind the first clutch element and adapted for moving the latter into engagement with the second clutch element, a foot pedal including a rockably mounted shaft having a foot engaging plate projecting radially therefrom, and a crank on the last named shaft also disposed radially in a direction opposite to the plate, said crank being positioned upwardly at an inclined angle and at one side of the lever and operable to engage the clutch upon a depressing action of the foot plate.

2. A clutch device of the class described comprising a driven shaft, a drive shaft sleeved on the driven shaft, a clutch element secured to said drive shaft, and a second clutch elementA secured on the driven shaft, a manually operable pendulum type lever positioned behind the rstnamed clutch element for moving the first clutch element into engagement with the second clutch element, a drive pulley, a drivenl pulley secured to the drive shaft and normally disposed in the plane of the drive pulley when the clutch elements are disengaged, and a belt operatively connecting said pulleys said driven pulley being offset from the drive pulley by the engaging movement of said rst clutch element to distort the belt and said distortion of the belt being operable to return the driven pulley and the rst-named clutch element to their normal positions.

3. A clutch device of the class described comprising a driven-shaft, a 'drive shaft sleeved on .the driven shaft, a clutch element secured to said drive shaft, a second clutch element secured on the driven shaft, a pendulum type lever disposed transversely behind the first clutch element and adapted to move `the latter into engagement with the second clutch-'element upon an actuation of the lever in one direction, said lever gravitating in an opposite direction for disengaging the clutch elements, and a foot pedal having an upwardly 

